Excess fat doesn't use up excess cardio up in the same way excess muscle does, muscle like fat has to be carried around, but muscle on top of this needs its own oxygen supply fat does not.
So Ruiz is in better physical condition than Joshua.
He has better endurance work rate cardio, and is a more advanced athlete in terms of physical conditioning.




Well developed muscles provide more disadvantage than advantage in boxing , even less advantage than being fat, optimal is like Joe Calzagge , Fury in shape, Ali, Vitali, and so on, ie a far more natural amount of muscle for your frame.
Developed muscles are a massive cost to endurance with little added to power. The endurance side of things is so much more important than most other factors including power, its so unbelievably effective to have a high work rate and loads of endurance, its mad that they still come in with developed muscles even as big men.
Big developed muscles dont work, they are a disadvantage, why do we still see them?
So Ruiz is in better physical condition than Joshua.
He has better endurance work rate cardio, and is a more advanced athlete in terms of physical conditioning.



Well developed muscles provide more disadvantage than advantage in boxing , even less advantage than being fat, optimal is like Joe Calzagge , Fury in shape, Ali, Vitali, and so on, ie a far more natural amount of muscle for your frame.
Developed muscles are a massive cost to endurance with little added to power. The endurance side of things is so much more important than most other factors including power, its so unbelievably effective to have a high work rate and loads of endurance, its mad that they still come in with developed muscles even as big men.
Big developed muscles dont work, they are a disadvantage, why do we still see them?

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